Significant shareholders

On 30 September 2011, Norges Bank (the Central Bank of Norway), Oslo, disclosed under the Swiss Stock Exchange Act a holding of 3.04% of the total share capital of UBS AG.

On 12 March 2010, Government of Singapore, Singapore, as beneficial owner, disclosed under the Swiss Stock Exchange Act a holding by Government of Singapore Investment Corp. of 6.45% of the total share capital of UBS AG.

On 17 December 2009, BlackRock Inc., New York, disclosed under the Swiss Stock Exchange Act a holding of 3.45% of the total share capital of UBS AG (3.21% of the total share capital of 11 March 2010).

Information on disclosures under the Swiss Stock Exchange Act can be found on the following website of the SIX Swiss Exchange.

SIX Swiss Exchange

Shareholders registered in the UBS share register with 3% or more of shares issued

Shareholder

 31 March 2012

31 December 2011

31 December 2010

Chase Nominees Ltd, London

 11.41%

10.95%

10.70%

DTC (Cede & Co.), New York*

 7.01%

7.07%

7.32%

Government of Singapore Investment Corp., Singapore

 6.40%

6.41%

6.41%

Nortrust Nominees Ltd, London

 4.29%

4.20%

3.79%
*DTC (Cede & Co.), New York, "The Depository Trust Company" is a US clearing organization.

According to UBS's "Regulation on the Registration of Shares", voting rights of nominees are restricted to 5%, but clearing and settlement organizations are exempt from this restriction.